Buggy code:
public class PatternParser { private ITokenSource tokenSource ; private ISourceContext sourceContext ; public PatternParser ( ITokenSource tokenSource ) { } public PerClause maybeParsePerClause ( ) { } private PerClause parsePerCflow ( boolean isBelow ) { } private PerClause parsePerObject ( boolean isThis ) { } private PerClause parsePerSingleton ( ) { } public Declare parseDeclare ( ) { } public DeclarePrecedence parseDominates ( ) { } private Declare parseParents ( ) { } private Declare parseSoft ( ) { } private Declare parseErrorOrWarning ( boolean isError ) { } public Pointcut parsePointcut ( ) { } private Pointcut parseNotOrPointcut ( ) { } private Pointcut parseAtomicPointcut ( ) { } public Pointcut parseSinglePointcut ( ) { } public Pointcut parseAnnotationPointcut ( ) { } private Pointcut parseAtAnnotationPointcut ( ) { } private SignaturePattern parseConstructorSignaturePattern ( ) { } private Pointcut parseWithinCodePointcut ( ) { } private Pointcut parseCflowPointcut ( boolean isBelow ) { } private Pointcut parseWithinPointcut ( ) { } private Pointcut parseThisOrTargetPointcut ( ) { } private Pointcut parseThisOrTargetAnnotationPointcut ( ) { } private Pointcut parseWithinAnnotationPointcut ( ) { } private Pointcut parseWithinCodeAnnotationPointcut ( ) { String kind = parseIdentifier ( ) ; eat ( "(" ) ; if ( maybeEat ( ")" ) ) { throw new ParserException ( "expecting<seq2seq4repair_space>@AnnotationName<seq2seq4repair_space>or<seq2seq4repair_space>parameter,<seq2seq4repair_space>but<seq2seq4repair_space>found<seq2seq4repair_space>')'" , tokenSource . peek ( ) ) ; } <START_BUG> AnnotationTypePattern type = parseAnnotationNameOrVarTypePattern ( ) ; <END_BUG> eat ( ")" ) ; return new WithinCodeAnnotationPointcut ( type ) ; } private Pointcut parseArgsPointcut ( ) { } private Pointcut parseArgsAnnotationPointcut ( ) { } private Pointcut parseReferencePointcut ( ) { } public List parseDottedIdentifier ( ) { } private KindedPointcut parseKindedPointcut ( ) { } public TypePattern parseTypePattern ( ) { } private TypePattern parseNotOrTypePattern ( ) { } private TypePattern parseAtomicTypePattern ( ) { } private TypePattern setAnnotationPatternForTypePattern ( TypePattern t , AnnotationTypePattern ap ) { } public AnnotationTypePattern maybeParseAnnotationPattern ( ) { } public AnnotationTypePattern maybeParseSingleAnnotationPattern ( ) { } public TypePattern parseSingleTypePattern ( ) { } protected ExactAnnotationTypePattern parseAnnotationNameOrVarTypePattern ( ) { } private ExactAnnotationTypePattern parseSimpleAnnotationName ( ) { } private boolean isAnnotationPattern ( PatternNode p ) { } public List parseDottedNamePattern ( ) { } public NamePattern parseNamePattern ( ) { } private void checkLegalName ( String s , IToken tok ) { } private boolean isAdjacent ( IToken first , IToken second ) { } public ModifiersPattern parseModifiersPattern ( ) { } public TypePatternList parseArgumentsPattern ( ) { } public AnnotationPatternList parseArgumentsAnnotationPattern ( ) { } public ThrowsPattern parseOptionalThrowsPattern ( ) { } public SignaturePattern parseMethodOrConstructorSignaturePattern ( ) { } private boolean maybeEatNew ( TypePattern returnType ) { } public SignaturePattern parseFieldSignaturePattern ( ) { } private NamePattern tryToExtractName ( TypePattern nextType ) { } public String parsePossibleStringSequence ( boolean shouldEnd ) { } public String parseStringLiteral ( ) { } public String parseIdentifier ( ) { } public void eatIdentifier ( String expectedValue ) { } public boolean maybeEatIdentifier ( String expectedValue ) { } public void eat ( String expectedValue ) { } public boolean maybeEat ( String token ) { } public String maybeEatIdentifier ( ) { } public boolean peek ( String token ) { } public PatternParser ( String data ) { } }

Fix:
ExactAnnotationTypePattern type = parseAnnotationNameOrVarTypePattern ( ) ;